It's Baaack! Rated 4 out of 5 stars
I had been using Aeon Clouds exclusively since January 2010 (v3.6) and quickly grew to love its calm, classy appearance. I was crushed when Firefox 29 was released and Aeon Clouds no longer displayed the tabs properly with Classic Theme Restorer installed and the "Tabs not on top" option selected. Much to my delight, the tabs have miraculously re-appeared with Aeon Clouds v7.2. Many thanks to the developer!
The only lingering deficiency: I would like to see the blue cloud pattern applied to the Add-on Bar at the bottom, but that's just nitpicking. So glad to have the basics back!